Java Applets
are not enabled in the WebRenderer Swing Edition by default. However,
they can be enabled by using the IMozillaBrowserCanvas.setAppletMode(int
mode) function. This function is used to enable or disable
applets, and to enable Applets with or without security.

The
Applet enablement mode can be one of three constants defined in
IMozillaBrowserCanvas:

Although
this method is called on a single IMozillaBrowserCanvas instance,
it affects all browsers spawned from BrowserFactory, including those
created after the method is called.

Applet Security

When
you call the setAppletMode method with ENABLE_JAVA_APPLETS, WebRenderer
will install a SecurityManager and a new Policy. This Policy will
grant AllPermissions to your application except Applets loaded
by WebRenderer.

If the ENABLE_JAVA_APPLETS constant is utilized,
a SecurityMaganger and Policy will be installed and remain installed
until the application is restarted. Calling this method afterwards
with ENABLE_JAVA_APPLETS_WITHOUT_SECURITY will simply tell the Policy
to grant AllPermissions to Applets (it will not remove the
Policy and SecurityManager).

If WebRenderer is run in a trusted
environment and it is safe to let Applets run with full permissions,
then this can be performed with the ENABLE_JAVA_APPLETS_WITHOUT_SECURITY
option. This enables Applets without installing a Security Manager
or Policy file. In general this option is only recommended for trusted
environments or if you are running your own SecurityManager.

The
DISABLE_JAVA_APPLETS will prevent Applets from running within the
WebRenderer Swing Edition.

Applet Proxy Settings

If
the WebRenderer application is using proxy settings to access
the internet, these settings will also need to be set for Applets.
The following BrowserFactory methods need to be called to enable
Applets to run through the proxy server: